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Official Giant Roam Owners Thread

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Official Giant Roam Owners Thread

Old 08-17-19, 09:46 AM
  #251  
badger1
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Originally Posted by hairyco View Post
Why do you say that it makes no difference?
Sorry to be ignorant. Do gears, derailleurs, brakes and other components not matter for bikes that have pedal assist?
Pay no attention to me -- seriously! I have a 'thing' about e-bikes, that's all; not a fan.

Yes, those components make a difference: better is better. In my opinion, though, not enough given your likely application to make the change you mooted worthwhile.

Others might disagree; if you want constructive advice -- again, seriously -- you really should go over to the e-bike sub-forum here: https://www.bikeforums.net/electric-bikes/

Cheers!
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Old 08-17-19, 10:26 AM
  #252  
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Originally Posted by hairyco View Post
Why do you say that it makes no difference?
Sorry to be ignorant. Do gears, derailleurs, brakes and other components not matter for bikes that have pedal assist?
To be honest, they do matter much less on an e-bike, least in my opinion and experience. My folks have four e-bikes. Two were purchased as e-bikes, and two were converted -- a Trek 8.4 DS and a Surly Pugsley. They have totally transformed cycling for them, and I love riding them whenever we visit them. I'd absolutely buy one, or convert my Roam, if I had the opportunity to ride as much as they ride (they're retired, and ride for hours each day).

Both of their purchased e-bikes use hub motors, and both of their converts are mid-drives. Especially for hub motors, there's relatively little power being transferred through the actual drivetrain (it's all in the hub), so drivetrain components don't get abused much. He's got cadence sensors on all of them (vs. torque sensors), so you can (if you want) put essentially zero power through the drivetrain, and have the hub motor drive the bike. The mid-drives are obviously different -- all of the assist runs through the chain and cassette. Even here, he shifts relatively infrequently because you don't have to keep such a constant cadence...or at least it's not as critical as it is with no assist.

PM me if you'd like more info on these. I recommend the conversion without hesitation.
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Old 08-17-19, 07:11 PM
  #253  
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Originally Posted by hokiefyd View Post
To be honest, they do matter much less on an e-bike, least in my opinion and experience. My folks have four e-bikes. Two were purchased as e-bikes, and two were converted -- a Trek 8.4 DS and a Surly Pugsley. They have totally transformed cycling for them, and I love riding them whenever we visit them. I'd absolutely buy one, or convert my Roam, if I had the opportunity to ride as much as they ride (they're retired, and ride for hours each day).

Both of their purchased e-bikes use hub motors, and both of their converts are mid-drives. Especially for hub motors, there's relatively little power being transferred through the actual drivetrain (it's all in the hub), so drivetrain components don't get abused much. He's got cadence sensors on all of them (vs. torque sensors), so you can (if you want) put essentially zero power through the drivetrain, and have the hub motor drive the bike. The mid-drives are obviously different -- all of the assist runs through the chain and cassette. Even here, he shifts relatively infrequently because you don't have to keep such a constant cadence...or at least it's not as critical as it is with no assist.

PM me if you'd like more info on these. I recommend the conversion without hesitation.
I ended up refunding the bike at my LBS and getting the second-hand bike. One thing that I noticed right away between the Roam 0 and Roam 2 was how much better the brakes were.
Either the LBS did something to the Roam 2 brakes so that I have to press much harder to get it to stop or the brakes on the Roam 0 is much better. I presume it's the case of the latter.

Anyways, I think that was one of the main reason that won me over, in addition to the more stealthy colorway.
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Old 08-18-19, 06:47 AM
  #254  
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As an e-bike, you'll definitely be able to take advantage of the better brakes. My guess is the new Roam's brakes just weren't bedded-in, yet (it can take up to 10-20 miles to lay down a layer of pad material on the rotors). Once the brakes are bedded, stopping power really improves. This has likely already happened on the older Roam. You can sort of see this for yourself -- if you clean the rotors on your new-used Roam really well with rubbing alcohol, you'll probably find that brake performance is reduced when you ride it next, and it'll take a little bit to build that pad material back up. It's generally not as bad as with truly new brakes, but it's still there to some degree.

Anyway, you'll enjoy that Roam 0 for sure. You'll enjoy it even more after you've electrified it. Luna Cycles even offers (or used to offer) a kit specific to the Giant Roam for conversions: the Roam Fusion.

Have fun, and be safe!
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Old 08-18-19, 07:40 PM
  #255  
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Thanks!

I also wanted to note that the specs on the Giant website about the forks are misleading. The website states that the 2017 Giant Roam 0 has SR Suntour NCX-D LO, w/ Lock-Out, 63mm.
As I looked at the forks, there is a lock-out switch on one side but on the other side is a twist cap which opens up to an air nozzle used for Air suspension. I am no expert but it seems like these are air suspension more than coil suspension.

If anyone else with a 2017 Giant Roam 0 could confirm my observations, that would be highly appreciated.
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Old 08-19-19, 04:34 AM
  #256  
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Yes, the NCX-D has both an air and a coil spring:

https://www.srsuntour.com/products/fork/NCX-D-5898.html
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Old 08-19-19, 04:48 AM
  #257  
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Originally Posted by hairyco View Post
Thanks!

I also wanted to note that the specs on the Giant website about the forks are misleading. The website states that the 2017 Giant Roam 0 has SR Suntour NCX-D LO, w/ Lock-Out, 63mm.
As I looked at the forks, there is a lock-out switch on one side but on the other side is a twist cap which opens up to an air nozzle used for Air suspension. I am no expert but it seems like these are air suspension more than coil suspension.

If anyone else with a 2017 Giant Roam 0 could confirm my observations, that would be highly appreciated.
The NCX series has been around for a few years now in essentially the same form. There are two versions, 'D' with steel upper tubes, and air or coil spring; 'E' with aluminum uppers and air spring only. The uppers on both are 30mm, and both have hydraulic damping.

'18/19 Roam 0s have NCX E LO (lockout) w/aluminum steer tube. The '17 as you say is specc'd "NCX D LO", but that can be either air or coil depending on what Giant wanted on the bike. They might even have changed the spec half-way through the model run from coil to air -- who knows?

If you are seeing an air valve under the top cap on one side, you have the air spring version. If it were coil you'd see a preload adjuster. Suntour's 'cross' forks with hydraulic damping/lockout all have the same basic construction: damping cartidge with lockout one side, air or coil spring the other.

*NCX D air: https://www.srsuntour.com/typo3conf/...,63,50-(2).pdf

*This shows the fork with remote lock-out (RL) lever/assembly, but otherwise it's your fork. Diagram gives you parts/codes etc. for virtually everything in there.
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Old 09-18-19, 02:51 PM
  #258  
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Hi guys!

I am a newbie in the bicycle world and would need a little advice from you. I am deciding between Giant Roam 0 disc M 2019 (900 eur with discount) and Giant Roam 2 disc M 2019 (630 eur with discount). Since the price varies for about 300 EUR, I am wondering if I will be able to feel the difference in the practical ride with one or another (daily driving in the city and local roads during weekends). Is Roam 0 worth the extra money?

Thank you for your help!
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Old 09-18-19, 03:21 PM
  #259  
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Originally Posted by bend1 View Post
Hi guys!

I am a newbie in the bicycle world and would need a little advice from you. I am deciding between Giant Roam 0 disc M 2019 (900 eur with discount) and Giant Roam 2 disc M 2019 (630 eur with discount). Since the price varies for about 300 EUR, I am wondering if I will be able to feel the difference in the practical ride with one or another (daily driving in the city and local roads during weekends). Is Roam 0 worth the extra money?

Thank you for your help!
My view: if you can comfortably afford the difference, and if you are going to give the bike moderate-to-heavy use, then unequivocally yes, the Roam 0 is well worth the upcharge over the Roam 2.

To my mind this is open/shut. Everything on the Roam 0 -- fork, brakes, wheelset, drivetrain -- other than the frame itself is significantly higher level/quality. This includes even such items as bars/stem/seatpost/saddle. Cumulatively, the differences are well worth the upcharge, and you will notice them. The 0 will be more capable on rough/unpaved surfaces, and the components will stay in adjustment longer and last longer. That it is also in consequence quite a bit lighter is an added bonus.

The '19 Roam 2 is a good bike; the '19 Roam 0 is -- of its type -- at another level altogether.
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Old 09-18-19, 03:36 PM
  #260  
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badger1 - thank you for your view! That really helped me to decide easier
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